Image Format Converter

Convert between PNG, JPG, WebP and AVIF without uploading a thing.

Drag & drop images here
or click to choose files — you can also paste from clipboard

Different jobs need different image formats. PNG preserves transparency and sharp edges, JPEG is universally supported, WebP offers modern compression, and AVIF delivers the best compression ratios available today. This converter moves your images between all four formats in a couple of clicks.

Conversion happens locally in your browser. Even AVIF — which requires a WebAssembly encoder because browsers cannot create it natively — is generated on your own machine. Files are never transmitted over the network, so converting private or work-related images here is as safe as doing it in a desktop app.

The tool supports batches: drop dozens of files, pick one target format, and download everything as a ZIP. A quality slider appears automatically for lossy targets so you can balance size against fidelity.

How to use

  1. Add one or more images using drag & drop, the file picker, or clipboard paste.
  2. Select the target format: PNG, JPEG, WebP or AVIF.
  3. For lossy formats, set a quality level (75 is a good default).
  4. Click Convert, preview the results, then download single files or the whole batch as ZIP.

Why use this tool?

Frequently Asked Questions

What is the difference between WebP and AVIF?
Both are modern formats with better compression than JPEG. AVIF usually achieves 20–30% smaller files than WebP at similar quality, but encodes much more slowly and is not yet supported by every editor. WebP is the safer everyday choice; AVIF shines when bandwidth matters most.
Why is AVIF conversion slow?
AVIF uses the AV1 encoder, which is computationally heavy. Because it runs through WebAssembly on your CPU rather than a server farm, large images can take several seconds or more. The wait buys you remarkably small files.
Will converting to JPEG remove transparency?
Yes. JPEG has no alpha channel, so transparent areas are filled with white (or black in some viewers). If you need to keep transparency, convert to WebP or stay with PNG.
Does converting lose quality?
Moving to a lossy format (JPEG/WebP/AVIF) discards some detail by design. Converting between lossless formats like PNG→PNG keeps pixels identical. Repeatedly re-saving a JPEG at low quality degrades it quickly, so always convert from the best original you have.